What is Reddit's opinion of Gemstones of the World: Newly Revised Fifth Edition?

From 3.5 billion Reddit comments

"Gemstones of the World" is an excellent book, got great info, the in depth moh's hardness scale is very useful.

And i recommend Andrew Berry on YouTube to get you up and running with soldering and general workshop basics.

Thanks for the recommendation! I just bought this book: Gemstones of the World: Newly Revised Fifth Edition https://www.amazon.com/dp/1454909536/ref=cm_sw_r_cp_api_pPGIybE1G50X2

Given that I didn't know an Amethyst was a quartz, I figured it's a good place to start. The book you recommended seems like a logical next step once I've upped my technical knowledge of gemstones themselves!